SOLUTION: Two trucks start from the same point traveling in different directions, One truck travels at a speed of 54 mi/h , the other at 48 mi/h. How long must they travel to be at least 408

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Question 75164: Two trucks start from the same point traveling in different directions, One truck travels at a speed of 54 mi/h , the other at 48 mi/h. How long must they travel to be at least 408 mi apart?
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
54X+48X=408
102X=408
X=408/102
X=4 HOURS IS THE ANSWER.